Siphon valve



INVENTOR.

ma ATTORNEY.

J. L. EMBLY Jan. 19, 1932.

S IPHON VALVE Filed March 26, 1929 flfx//////////////// Patented Jail; 19,;1932

F up ront sHocKEmoFWAYNEsBoRo, .BENNSYLVANIA i Y Q operation siphon alves, such as i has been exper ien ced inthe breaking oflthe siphonassoon as; the opening. in the top of 5 thervorking cylinder through" which the valve stem. protrudes is above the Water level. If

r i 11 this openingis providedwith ordinarypaele ingstufiing rneans the valve acts sluggish, or

i failsto act at all on account of its light Weight,

4 and; by much experimentation, I have discoveredthat the difileulty may be overcome as l 1 herein settorth; and, further that the device n that I have hereinafter described is extremely useful in many :other applications Where "a 1 sealing device is required Which is alternately above and beloivwater level; i

he object of my invention is the providing of afiuid seal to anoperative member subjected' tofluid and gaseous surroundings, as

I 9 the case may be.

A further obj ect of my invention is theproviding of an improvedsiphon valve for flush tanks...

Afurther objectof my invention is the providing an improved siphon valve forv flush tanks Which ill empty the tank Without breaking the siphon before the inlet portion thereof reaches the surface of the Water. j

t A further object of my. invention is anini- Q proved discharge portion ofa siphon valve whereby the same is madeto enable easier con strnction and a more stable operation.

lVith the foregoing and other objects in view, my invention consists of the novel constructionacombination and arrangement of parts as herein after specifically described and illustrated in the accompanying drawings,

wherein isshovvn the preferred embodiment 40 of my invention, but it is understood that changes, variations and modifications can be resorted to which come Within the scope of a theclaiin hereunto appended H In the drawings of the herein-described 4.5 elnbodiment ot my invention, Figure l'is a sectional View in side elevation of 1ny i1nproved siphon valve attached to a. flush tank; Figzj2 is a horizontalsectional view taken through 2-2, of Fig. 1; and Fig. 3 is a hori- 5, zontal sectional view taken through 33, of

it nut.

T a em i a qi i ed ar h [26; 1959. s ar No. 350,002. 1

valve support: I

.Siniilar nunierals I rei tl'iroughout.tlieseveralvievvsl f istheflushtank. thecylinder. is the inlet in cylinder 2. 4r i'sfthe piston or,

valve support. 5 is the" loose valve or piston whi-eh operateson valve 'stenr6 loosely and is upported on valvesupport l. Valve sue; port ltconsists of an open supporting member, such as a spider, as shown in Fig. 3, and is "se' r to si nilar parts JAMES Es rEnMBLY, OFWAYNESBORO, nEitNsYLvAmA,AssIs-iron on oat-HALF Figfl', and particularly the 1 piston or I i cured to valve stein 6 and operates asa skele tonpiston in cylinder 2 supporting the actual! piston or loosevalve 5N7 istlie'cylinder head; in the view .shoitn integral With. the cyliiiderfl In cylinder head 7 is tin-opening through which operates" valve steni' Around openingI8 is a cup orreservoir mein her 9jof sufficient size tohold a liquid in qu antity sufiieient to supply leakage around valveste n 6 operating inopening 8 While the fluid the tank is being discharged from the top, of said reservoir member to theinlet or suct on otythe cylinder, therebypreve'nting airi enteringthe cylinder beforethe tanleis p d. This reservoir member-"i b o the surface oftlie Water Whenthetankisat its normal filled elevation, that is a. point just below the turn .of the siphon, thereby said reservoir'is always maintainedfnll of fluid: excepting when the tank is being einptied or is empty; it thus provides a fluid sea-l so long asthereis fluid in thereservoir member 9. i

"At the end l of valve stein fifvvhich is at tachedto the piston, is neans for attach ing the pull-cord or" chain for flushing neans. flOjis the discharge leg of the siphon which passesthrough flushltanltl and is provided withvineans for inaking Water-tight at that point as shown, consisting of .flange 11,,

threaded portion12 andlock-nut 13 suitable packing being used on setting up the lock-31 It; is that discharge leg .lO be substantially straightand of a less diameter or carryingcapacity than the other members leading thereuntoa 14 is the top bend of the siphon lll5isthe portion connecting the top? 1Ufl The operation of my invention is as follows:

The siphon valve being properly installed in the flush tank and means being provided for admitting the fluid therein to a specific, predetermined level, which may be accomplished by aball floater other well-known'means concerning which nothing is claimed herein, the fluid is maintained in the flush tank at or about the level shown by the broken line 16-16. The piston l and valve 5 are atthe lower end or extremity of cylinder 2 near inlet 3, the cylinder 2 connecting member 15 to the point of 1616 and the reservoir vmemher 9 is full of fluid. Upon pulling the' pull cord or chain through means 17 the piston rod with its attached valve support and valve resting upon the same is pulled upward lifting with it the fluid in the uppei end of the cylinder which flows through :connecting member 1 5, top bend 14-, and down discharge leg 10 of the siphon, causing a siphon action to take place which continues sucking the fluid through valvesupport l and connecting portion 15, the valve 5 being sucked or main tained' near the upper portion of the cylinder partially tipped on the valve stem, as the same fits loosely thereon, thus forming no obstruction to the flow of the fluid. Upon the ceasing of the flow of the fluid, which will seek its level at the inlet pipe of the cylinder, and upon releasing the pull cord the valve support immediately descends. to its normal position and the valve or piston drops into its normal place.

Again'calling attention to the cup or reservoir 9:, as the fluid in the flush tank recedeslbelow level 18-18 fluid is held in reservoir Sand is drawn therefrom only by the leakage aroundvalve stem 6; as the movement. of the fluid is very rapid in the cylin-. der, portion and siphon and the leakage around valve stem 6 in opening 8v is. very slow, the flush tank will be emptied a considerable time before the fluid in reservoir 9 is emptied therefrom in the performance of its function as a sealing means for opening 8.

In use the pull cord or chain is ordinarily released immediately after pulling. This returns valve support 4 and valve stem 6 to normal position; theweight of these memhers is carried byauxiliary valve l9 on the v valve stem 6 seating ona seat formed in Opening 8. Thls auxiliary valve 19 when seated assists in preventing air or fllllClPfiSSlIlg through opening 8, thus insuring a stopping or preventing a is seated.

leak at that point when it Having thus described my invention, what 1 I claim and desire to secure by Letters Pat- A siphon for flush tank's comprising a cylinder open at its lower end and having an inverted vLl-shaped conduit attached to its upper end, said conduiteXtend-i'ng down bepositioned around the opening in the upper end of the cylinder through which the rod extends and a valve secured on the rod and adapted to seal the opening through which the rod extends to prevent water from flowlnginto the cylinder, said valve also serving tosupportthe rodinthe cylinder whenin its lowermost position,"substantially'as set forth.

J LESLIE, EMBLY. 

